FEATURES
- 1 - 8 slot configurations
- 1 or 2 way discharge patterns
- Adjustable horizontal, diagonal or vertical discharge direction
- High induction alternating mini-jet discharge
- Barrel nozzles individually adjustable through 90°
- Barrel nozzles of plastic, black
- Side and end profiles of aluminium, natural anodised or powder coated
- Flanged or flangeless side and end profiles
- Installation flush with ceiling or free hanging
FUNCTION
The SMARTEMP Linear Multistream Ceiling Diffuser, type LMC-AD, is a high induction linear slot diffuser. A multitude of barrel nozzles produce alternating mini-jet discharge. The discharge direction of each barrel nozzle is individually adjustable, providing accurate air pattern adjustment. The diffuser is available with 1-way (adjustable through 90° for horizontal through diagonal to vertical discharge) or 2-way discharge patterns (each direction adjustable through 90° for horizontal through diagonal to vertical discharge).
The diffuser may be flush mounted in a ceiling or freely suspended (ie no Coanda attachment to the ceiling required). The diffuser’s 1 to 8-row linear slots (greater slot numbers available on request) comprise a multitude of nozzles with manually adjustable discharge direction adjustment to produce high induction discharge by breaking up the supply air stream into many miniature jets. The barrel nozzles are made of polycarbonate, dyed black, and are located in aluminium extrusions that are anodised or powder coated.
High induction discharge offers many advantages. High aspiration causes intense mixing at the diffuser discharge face, strongly diluting the supply air stream with large quantities of room air. High induction, additionally, rapidly equalises the supply air stream temperature with room air, preventing cold air dumping. Rapid supply-to-room air temperature equalisation also improves heating performance by preventing the supply air from being too bouyant. High induction airflow is characterised by uniform temperature distribution and high comfort levels in the space. High induction also produces a strong increase in supply air stream mass flow rate, as well as rapid discharge velocity decay. At any given airflow rate, the SMARTEMP LMC-AD diffuser is suitable both for long throws (due to the supply air stream's high momentum) as well as short throws (due to the supply air stream's low velocity).
The SMARTEMP LMC-AD diffuser may be used in CAV systems, as well as VAV systems, including low-temperature supply air systems with ΔTsupply-room ≥ -16 K. VAV system turndown is dependent upon ΔTsupply-room (eg to 25% at ΔTsupply-room = -16 K). Due to high induction mini-jet discharge, the effective air changes per hour in the space are increased, allowing minimum specific airflow rates as low as approximately 1 L/s/m2 when the diffuser is fully turned down, whilst maintaining enhanced comfort of 90% ADPI. Due to the rapid discharge decay characteristics of the micro-jet discharge, a high maximum specific airflow rate of 15 L/s/m2 may be achieved at 90% ADPI.
